I began taking Avesta Collagen about 8 years ago and noticed a difference within a few weeks, my nails, and crunchy knees were the first thing. The speed of growth and strength mainly. Until a month ago I took it daily, but when I had to travel for work I forgot to pack my Avesta. It took a couple of weeks of slowly increasing pain and stiffness for me to realise I was in pain again and the only change was not taking my Avesta. I ordered more as soon as I realised and within a week the pain and stiffness subsided again. You may not realise just how much good your daily Avesta is doing you but from now on it's the first thing I pack when travelling. My suggestion is to not test the pain, I've done that for you, instead pack your Avesta wherever you go.